Without these ops the v4l2-compliance blocking wait test will fail. These ops are required to ensure that when VIDIOC_DQBUF has to wait for buffers to arrive, the queue lock is correctly released and retaken. Otherwise the wait for a buffer would block all other queue ioctls. Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx> Cc: Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx> Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> --- drivers/media/platform/raspberrypi/pisp_be/pisp_be.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/platform/raspberrypi/pisp_be/pisp_be.c b/drivers/media/platform/raspberrypi/pisp_be/pisp_be.c index 65ff2382cffe..7ce3be626c4a 100644 --- a/drivers/media/platform/raspberrypi/pisp_be/pisp_be.c +++ b/drivers/media/platform/raspberrypi/pisp_be/pisp_be.c @@ -964,6 +964,8 @@ static const struct vb2_ops pispbe_node_queue_ops = { .buf_queue = pispbe_node_buffer_queue, .start_streaming = pispbe_node_start_streaming, .stop_streaming = pispbe_node_stop_streaming, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, }; static const struct v4l2_file_operations pispbe_fops = { -- 2.43.0